Spring-caster



(No Model.)

J. W. SPURLOOK.

SPRING OASTER.

Patented July 13, 1897.

JOHN IV. SPURLOOK,

SPRING- PATENT OFFICE.

OF TY TY, GEORGIA.

CASTER.

SPECIFICATION forming part of Letters Patent No. 586,460, dated July 13,1897.

Application filed November 10, 1896. Serial No. 611,671. (No model.)

To all whom it rnaz/ concern.-

Be it known that I, JOHN IV. SPURLOCK, a citizen of the United States,residing at Ty Ty, in the county of IVorth and State of Georgia, haveinvented certain new and useful Improvements in Spring-Casters; and I dodeclare the following to be afull, clear, and eX- act description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

My invention has relation to spring-casters for the legs or posts ofbedsteads, and the object is to provide an economical and durablespring-caster of this class; and to this end the novelty consists in theconstruction, combination, and arrangement of the same, as will behereinafter more fully described, and particularly pointed out in theclaims.

In the accompanying drawings the same figures of reference indicate thesame parts of the invention.

Figure 1 is a side elevation of my improved spring-caster. Fig. 2 is aplan view of the caster-bracket, and Fig. 3 is a vertical sectionthrough one of the bracketsOckets.

1 represents a conical coiled spring, the upper end of which terminatesin a vertical pin 2, which is seated in the vertical orifice 3 in thebottom of the bedpost 4, and the lower coil 5 is finished to form anapproximately horizontal plane.

6 represents a bracket comprising an annular plane flange '7, providedon its outer edge with three equidistant integral sockets 8 8 8, andthese sockets are each formed with a central circular vertical orifice9, which receives the cylindrical shank 10 of the caster-roller 11.

12 represents a horizontal recess on the inner side of the sockets andsaid recess communicates with the vertical orifice in the sockets.

13 represents a semicircular circumferential groove in the shank 10 inthe same plane with the recess 12 in the sockets.

In assembling the parts the shank of the caster is first inserted in thesocket and the free end of the lower coil 5 of the spring is inserted inthe recess 12 of the socket. The spring is then turned to the left,which simultaneously locks the spring and the shank of the caster in thesocket, while at the same time the shank of the caster is permitted tofreely revolve in said socket.

These spring-casters may be used with or without the ordinary bed-springs, and although I have specifically described the constructionand relative arrangement of the several elements of my invention I donot desire to be confined to the same, as such changes or modificationsmay be made as clearly fall within the scope of my invention withoutdeparting from the spirit thereof.

Having thus fully described my invention,

what I claim as new and useful, and desire to secure by Letters Patentof the United States, is

1. A spring-caster of the class described, comprising the bracket 6provided with integral sockets 8, having vertical orifices 9, thecaster-rollers 11, having cylindrical shanks 10, and the conical coiledspring 1 formed with a horizontal coil 5 and a vertical integral pin 2,substantially as and for the purpose set forth.

2. The bracket 6 provided with integral sockets 8, having horizontalrecess 12 and ver tical orifice 9, in combination with the casterroller11, the cylindrical shank 10 of which is formed with a semicircularcircumferential groove 13, and the spiral spring 1, the lower coil 5 ofwhich is formed inahorizontal plane, substantially as shown anddescribed.

In testimony whereof I hereunto afiix my signature in presence of twowitnesses.

JOHN IV. SPURLOCK.

Witnesses:

P. S. B. FORD, R. G. TISON.

